We describe the structure, microstructures, texture and paleopiezometry of quartz-rich phyllites and marbles along N-trending Moutsounas shear zone at the eastern margin of the Naxos metamorphic core complex (MCC). Fabrics consistently indicate a top-to-the-NNE non-coaxial shear and formed during the main stage of updoming and exhumation between ca. 14 and 11 Ma of the Naxos MCC. The main stage of exhumation postdates the deposition of overlying Miocene sedimentary successions and predates the overlying Upper Miocene/Pliocene conglomerates. Detailed microstructural and textural analysis reveals that the movement along the Moutsounas shear zone is associated with a retrograde greenschist to subgreenschist facies overprint of the early higher-temperature rocks. Paleopiezometry on recrystallized quartz and calcite yields differential stresses of 20–77 MPa and a strain rate of 10−15–10−13 s−1 at 350 °C for quartz and ca. 300 °C for calcite. Chlorite geothermometry of the shear zone yields two temperature regimes, 300–360 °C, and 200–250 °C. The lower temperature group is interpreted to result from late-stage hydrothermal overprint.

中文翻译：

---

变质核复合体的横向边界：希腊基克拉泽斯群岛纳克索斯岛的 Moutsounas 剪切带

我们描述了 Naxos 变质岩核复合体 (MCC) 东缘沿 N 向 Moutsounas 剪切带的富含石英的千枚岩和大理石的结构、微观结构、质地和古压力测量。织物始终显示从顶部到 NNE 的非同轴剪切，并在大约 10 和 10 之间的上升和折返的主要阶段形成。Naxos MCC 的 14 和 11 Ma。折返的主要阶段发生在上覆中新世沉积序列的沉积之后，并早于上覆的上中新世/上新世砾岩。详细的微观结构和结构分析表明，沿 Moutsounas 剪切带的运动与早期高温岩石的逆绿片岩至亚绿片岩相叠印有关。重结晶石英和方解石的古压力测量法在 350°C 下对石英和约 350°C 产生 20-77 MPa 的不同应力和 10-15-10-13 s-1 的应变速率。方解石为 300 °C。剪切带的绿泥石地质测温产生两个温度范围，300–360 °C 和 200–250 °C。较低的温度组被解释为后期热液套印的结果。